Transaction not yet indexed

53n99MTo1LxaUBZqXQc4DEVEWNg4ABqg4bJq9PmkFFn1WW3cPggPKoVGyBEqhpN5o6YVGAH3YmVCPDw5yyaDP4fp

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.